As a rubber product, O-ring has a variety of different materials, according to different use scenarios and functions, it is also important to choose the right O-ring.
1) The operating state of the O-ring: is it an O-ring for packing seal or for dynamic sealing, drag or rotation;
2) The operating status of the mechanical equipment: refers to whether the mechanical equipment is in contact work or intermittent work, and should consider the length of each intermittent time, whether there is an impact load effect in the sealing part;
3) The condition of the working medium: whether the working medium is vaporized or vaporized, taking into account the physical and organic chemistry characteristics of the working medium;
4) Pressure: the size of the working pressure, the strength and frequency of fluctuations and the large working pressure that appears at a moment;
5) Working temperature: including the instantaneous temperature and its heat; the alternating temperature of cold;
